Even, I can not make use of PayPal why talking abkut using cryptocurrencies as a payment method, bitcoin and altcoin payment have been easy for me since I started knowing about crypto generally. If it is not my key, it is not my coin is the say. Exchanges can be hacked at any time, while Paxos is an exchange. I will advice people to have this at the back of their mind and never forgotten it, custodial services will only make your coins less safe.
I agree with you.
But as I said in another post, there are still reasons to use Bitcoin with Paypal.
Paypal is largely accepted (more than bitcoin). So, theoretically, bitcoin is now a payment method in every website that accepts paypal.
If you read the quoted page, you will notice that the word "risk" is all over the place. So IMO, I don't think their reputation would be harmed if something bad happens. It's the user's responsibility to read the TOS and understand the risks and limitations.
Who read TOS?
I believe mass adoption will inevitably lead to mass custodial services. As Hal Finney once said, it is possible that in the future most transaction will happen off chain, and mostly big players will be making blockchain transactions. Like in this case with PAxos/PayPal, most transactions will be happening only inside paxos system (merchants and customers using paxos via paypal), and no blockchain transactions. Paxos/PayPal may even be fractional reserve of bitcoins (making 2x more bitcoin than they really have).
Bitcoin backed banks will solve these problems. They can work like banks did before nationalization of currency. Different banks can have different policies, some more aggressive, some more conservative. Some would be fractional reserve while others may be 100% Bitcoin backed. Interest rates may vary. Cash from some banks may trade at a discount to that from others.
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I believe this will be the ultimate fate of Bitcoin, to be the "high-powered money" that serves as a reserve currency for banks that issue their own digital cash. Most Bitcoin transactions will occur between banks, to settle net transfers. Bitcoin transactions by private individuals will be as rare as... well, as Bitcoin based purchases are today.